Best Companion Plants for Hollyhocks

What to plant alongside hollyhocks.

July 27, 2025 | 8 min read
A vibrant garden featuring hollyhocks with companion plants

These towering beauties can be a stunning addition to any garden, but to truly make them shine, it's important to choose the right companions. In this article, I'll share my tips on the best companion plants for hollyhocks, focusing on our unique UK climate.

Quick Answer

Companion plants for hollyhocks should complement their height and colour while thriving in similar soil and sunlight conditions. Consider planting foxgloves, delphiniums, and daisies for a vibrant, cohesive look.

Understanding Hollyhock Needs

Before selecting companion plants, it's crucial to understand the growing conditions hollyhocks prefer. They thrive in full sun and require well-drained soil. In the Midlands, hollyhocks bloom from June to August, adding vertical interest to your garden.

Top Companion Plants

Foxgloves

Foxgloves (Digitalis) are excellent companions for hollyhocks. Their tall spires of tubular flowers create a harmonious look, and they thrive in similar soil and sunlight conditions. Ensure they're planted in a spot with partial shade to prevent the soil from drying out too quickly.

Delphiniums

Delphiniums bring a vibrant splash of blue to your garden. They share the same height and blooming period as hollyhocks, making them ideal companions. Plant them in a sheltered spot away from strong winds to avoid damage.

Daisies

Daisies add a cheerful touch and attract beneficial insects. Their low height complements the towering hollyhocks, creating a balanced look. Plant them at the front of your border for maximum impact.

Benefits of Companion Planting

  • Improved pollination due to diverse flowering periods
  • Enhanced visual appeal with varied flower heights and colours
  • Natural pest control through attracting beneficial insects

Seasonal Planting Guide

Month Activity Notes
March Prepare soil Ensure good drainage and add compost
April Plant hollyhock seeds Start indoors or sow directly
May Transplant seedlings If started indoors
June-August Blooming period Monitor for pests and water regularly

Frequently Asked Questions

Can hollyhocks grow in partial shade?

Hollyhocks prefer full sun but can tolerate partial shade, especially in warmer climates.

What soil type is best for hollyhocks?

Hollyhocks thrive in well-drained, loamy soil enriched with organic matter.

How do I prevent rust on my hollyhocks?

Ensure good air circulation, avoid overhead watering, and remove any infected leaves promptly.

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